The impact of climatic changes on permafrost degradation in source region of the Yangtze River

Jin Chen; Dongqing Li; Qingzhou Meng; Guowucai Yong

doi:10.1117/12.813047

3 November 2008 The impact of climatic changes on permafrost degradation in source region of the Yangtze River

Jin Chen, Dongqing Li, Qingzhou Meng, Guowucai Yong

Proceedings Volume 7145, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Monitoring and Assessment of Natural Resources and Environments; 71451T (2008) https://doi.org/10.1117/12.813047
Event: Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Geo-Simulation and Virtual GIS Environments, 2008, Guangzhou, China

Abstract

During the past fifty years, permafrost in source region of the Yangtze River (SRYR) has been degrading at a rapid rate due to the influence of increasing human activities and climatic changes. As we all know, the population density in SRYR is not more than one person per square kilometer, so impact of human activities on permafrost is far less than that of climatic changes. Increase of air temperature has resulted in an increase in ground temperature, deepening of permafrost table and shrinkage of permafrost area. In addition to air temperature, many other meteorological factors especially sunshine duration and annual snow cover also have a direct effect on permafrost temperature and can modify the effect of changes in air temperature. In this paper, we analyzed the status of permafrost degradation and the variations of air temperature, sunshine duration and snow cover, pointed out the relationship between permafrost degradation and climatic changes.

Citation Download Citation

Jin Chen, Dongqing Li, Qingzhou Meng, and Guowucai Yong "The impact of climatic changes on permafrost degradation in source region of the Yangtze River", Proc. SPIE 7145, Geoinformatics 2008 and Joint Conference on GIS and Built Environment: Monitoring and Assessment of Natural Resources and Environments, 71451T (3 November 2008); https://doi.org/10.1117/12.813047

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